Q. A cricket ball of mass 0.25 kg with speed 10 m/s collides with a bat and returns with same speed with in 0.01 s. The force acted on bat is
A) 25 N
B) 50 N
C) 250 N
D) 500 N
Explanation
(d) $\mathrm{\Delta}p = 2mv = 2 \times 0.25 \times 10 = 5\ kg\ m/s$
$F = \frac{\mathrm{\Delta}p}{\mathrm{\Delta}t} = \frac{5}{0.01} = 500\ N$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.